US9551420B2 - Sealing ring - Google Patents

Sealing ring Download PDF

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Publication number
US9551420B2
US9551420B2 US14/485,429 US201414485429A US9551420B2 US 9551420 B2 US9551420 B2 US 9551420B2 US 201414485429 A US201414485429 A US 201414485429A US 9551420 B2 US9551420 B2 US 9551420B2
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United States
Prior art keywords
sealing
sealing ring
leg
centering
angle
Prior art date
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Active, expires
Application number
US14/485,429
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US20160076650A1 (en
Inventor
Mark W. Armitage
Dallas Conway
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain Performance Plastics Corp
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American Seal and Engineering Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by American Seal and Engineering Co Inc filed Critical American Seal and Engineering Co Inc
Priority to US14/485,429 priority Critical patent/US9551420B2/en
Assigned to AMERICAN SEAL AND ENGINEERING COMPANY, INC. reassignment AMERICAN SEAL AND ENGINEERING COMPANY, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ARMITAGE, MARK W., MR., CONWAY, DALLAS, MR
Priority to EP15839956.8A priority patent/EP3191745B1/fr
Priority to EP19186461.0A priority patent/EP3572694B1/fr
Priority to PCT/US2015/049335 priority patent/WO2016040569A1/fr
Publication of US20160076650A1 publication Critical patent/US20160076650A1/en
Application granted granted Critical
Publication of US9551420B2 publication Critical patent/US9551420B2/en
Assigned to SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION reassignment SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: AMERICAN SEAL AND ENGINEERING COMPANY, INC.
Active legal-status Critical Current
Adjusted expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/021—Sealings between relatively-stationary surfaces with elastic packing
    • F16J15/022—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material
    • F16J15/024—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material the packing being locally weakened in order to increase elasticity
    • F16J15/025—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material the packing being locally weakened in order to increase elasticity and with at least one flexible lip
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
    • F16J15/0887—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing the sealing effect being obtained by elastic deformation of the packing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
    • F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
    • F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
    • F16J15/3236—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips with at least one lip for each surface, e.g. U-cup packings

Definitions

  • Sealing rings also known as annular seals or O-rings, are widely used in industrial, automotive and machinery applications. Typical sealing rings are disclosed in U.S. Pat. Nos. 2,392,182, 7,857,322, 3,288,475, 3,052,478, 2,888,281, 2,841,429, 3,228,705, 3,047,301, 3,183,008, 3,612,551 and 5,002,290, U.S. Patent Application Publication No. 20130113165, European Patent No. EP0806594 and Chinese Patent No. CN201047442.
  • a common prior art technique of accomplishing bidirectional sealing entails the use of two C-seals or spring energized seals facing back to back to handle pressure on the inner diameter or the outer diameter.
  • Each seal must be positioned in a separate groove to provide support from the pressure on the opposite side of the seal. Positioning the seals in separate grooves is necessary because if the seals were positioned in the same groove, the seals would slide into each other thereby compromising the sealing integrity of both seals.
  • the present invention is a sealing ring ( 10 ) having in a diametrical cross-section a body section ( 12 ) and a first pair of sealing legs ( 16 ) and ( 18 ) that extend outwardly from and are integral with the body section ( 12 ) and are angularly spaced apart by a first angle.
  • the sealing ring ( 10 ) further includes in the diametrical cross-section a second pair of sealing legs ( 22 ) and ( 24 ) that extend outwardly from and are integral with the body section ( 12 ) and are spaced apart by a second angle.
  • Each sealing leg ( 16 ), ( 18 ), ( 22 ) and ( 24 ) extends to a beveled end ( 28 ), ( 30 ), ( 32 ) and ( 34 ), respectively, which is configured to form a seal with a surface when the sealing ring ( 10 ) is subjected to compression or compressive stress.
  • Sealing legs ( 16 ) and ( 24 ) are substantially coplanar.
  • Sealing legs ( 18 ) and ( 22 ) are substantially coplanar.
  • the plane in which sealing legs ( 16 ) and ( 24 ) are lying intersects the plane in which sealing legs ( 18 ) and ( 22 ) are lying. Stated another way, the plane of sealing legs ( 16 ) and ( 24 ) intersect the plane of sealing legs ( 18 ) and ( 22 ).
  • Sealing ring ( 10 ) further comprises in the diametrical cross-section a first centering leg ( 40 ) that outwardly extends from and is integral with the body section ( 12 ) and is located between and angularly spaced apart from sealing leg ( 16 ) and sealing leg ( 22 ), and a second centering leg ( 44 ) that outwardly extends from and is integral with the body section ( 12 ) and is located between and angularly spaced apart from sealing leg ( 18 ) and sealing leg ( 24 ).
  • the first and second centering legs ( 40 ) and ( 44 ) are substantially coplanar. When sealing ring ( 10 ) is positioned in annular groove ( 100 ), the first and second centering legs ( 40 ) and ( 44 ) center the sealing ring ( 10 ) and limit the lateral movement of the sealing ring ( 10 ).
  • FIG. 1 is an isometric view of the sealing ring of the present invention
  • FIG. 2 is a top view of the sealing ring
  • FIG. 3 is a bottom view of the sealing ring
  • FIG. 4 is a cross-sectional view taken along line 4 - 4 in FIG. 2 ;
  • FIG. 5A is an enlarged version of the view indicated by reference number 5 A in FIG. 4 ;
  • FIG. 5B is the same view as FIG. 5A , the view showing reference lines and other indicia to indicate angles and dimensions of various portions of the sealing ring;
  • FIG. 5C is the same view as FIG. 5A , the view showing reference lines and other indicia to indicate angles and dimensions of various portions of the sealing ring;
  • FIG. 6A is an enlarged version of the view indicated by reference number 6 A in FIG. 4 ;
  • FIG. 6B is the same view as FIG. 6A , the view showing reference lines and other indicia to indicate dimensions of various portions of the sealing ring;
  • FIG. 7 is a cross-sectional view showing the sealing ring in use to create a seal between two components.
  • free height refers to the height of sealing ring 10 when the sealing ring 10 is not installed in any application and has no pressure or compressive forces thereon.
  • sealing ring 10 has in a diametrical cross-section a body section 12 (see FIGS. 5A and 6A ).
  • the center of body section 12 is indicated by reference number 14 .
  • Sealing ring 10 further includes in the diametrical cross-section a first pair of sealing legs 16 and 18 that extend outwardly from and are integral with the body section 12 .
  • Sealing legs 16 and 18 are angularly spaced apart by a first angle ⁇ 1 .
  • the geometrical configuration of sealing legs 16 and 18 form a channel or curved recess 20 between sealing legs 16 and 18 .
  • Sealing ring 10 further includes in the diametrical cross-section a second pair of sealing legs 22 and 24 that extend outwardly from and are integral with the body section 12 . Sealing legs 22 and 24 are spaced apart by a second angle ⁇ 2 (see FIG. 5C ). The geometrical configuration of sealing legs 22 and 24 form a channel or curved recess 25 between sealing legs 22 and 24 . Each sealing leg 16 , 18 , 22 and 24 extends to a beveled end 28 , 30 , 32 and 34 , respectively. Each beveled end 28 , 30 , 32 and 34 is configured to form a seal with a surface when the sealing ring 10 is under pressure or subjected to compressive stress. As shown in FIG. 5B , each beveled end 28 , 30 , 32 and 34 is beveled in accordance with a predetermined bevel angle ⁇ which is discussed in detail in the ensuing description.
  • Sealing leg 16 and sealing leg 24 are substantially coplanar. Sealing leg 18 and sealing leg 22 are substantially coplanar. The plane in which sealing legs 16 and 24 lie intersects the plane in which sealing legs 18 and 22 lie, wherein the point of intersection is at center 14 of body section 12 .
  • Sealing ring 10 further comprises in the diametrical cross-section a first centering leg 40 that outwardly extends from and is integral with body section 12 and is located between and angularly spaced apart from sealing legs 16 and 22 . First centering leg 40 extends to end 42 .
  • the sealing ring 10 further comprises in the diametrical cross-section a second centering leg 44 that outwardly extends from and is integral with body section 12 and is located between and angularly spaced apart from sealing legs 18 and 24 .
  • Second centering leg 44 extends to end 46 .
  • the first and second centering legs 40 and 44 are substantially coplanar and lie in a plane that extends through center 14 of body section 12 . Therefore, the plane in which sealing legs 16 and 24 lie and the plane in which sealing legs 18 and 22 lie intersect the plane in which centering sections 40 and 44 lie and all planes intersect each other at the center 14 of body section 12 .
  • Component 90 has an annularly extending channel or groove 100 and a wall or surface 102 within groove 100 .
  • Component 92 has a surface 104 that confronts groove 100 .
  • Sealing ring 10 is disposed within annularly extending groove 100 .
  • the functions of first and second centering legs 40 and 44 are to center the sealing ring 10 within groove 100 and to limit the lateral movement of the sealing ring 10 while positioned in groove 100 .
  • first angle ⁇ 1 is equal to second angle ⁇ 2 .
  • first angle ⁇ 1 and second angle ⁇ 2 are 105 degrees.
  • First centering leg 40 is angularly spaced apart from the sealing leg 16 by a third angle ⁇ 3 and is angularly spaced apart from sealing leg 22 by a fourth angle ⁇ 4 .
  • third angle ⁇ 3 is equal to the fourth angle ⁇ 4 .
  • the third angle ⁇ 3 and fourth angle ⁇ 4 are 37 degrees.
  • Second centering leg 44 is angularly spaced apart from sealing leg 18 by a fifth angle ⁇ 5 and angularly spaced apart from sealing leg 24 by a sixth angle ⁇ 6 .
  • fifth angle ⁇ 5 is equal to the sixth angle ⁇ 6 .
  • the fifth angle ⁇ 5 and sixth angle ⁇ 6 are 37 degrees.
  • each beveled end 28 , 30 , 32 and 34 of each sealing leg 16 , 18 , 22 and 24 , respectively, is beveled in accordance with a predetermined bevel angle ⁇ .
  • Sealing ring 10 is fabricated from a material that provides sealing ring 10 with a degree of resiliency such that when sealing ring 10 is subjected to compression or a compressive stress, there is a slight deformation in sealing legs 16 , 18 , 22 and 24 that causes the entire surface of each beveled end 28 , 30 , 32 and 34 , respectively, to fully contact and become flush with the channel walls or other surfaces that confront the beveled ends 28 , 30 , 32 and 34 .
  • Sealing ring 10 is disposed within a channel or groove 100 and is subjected to a compressive force created by components 90 and 92 .
  • the entire surface of each beveled end 28 and 30 fully contacts and becomes flush with surface 104 of component 92 and the entire surface of each beveled end 32 and 34 fully contacts and becomes flush with surface 102 of component 90 thereby creating a high-integrity seal between components 90 and 92 .
  • the predetermined bevel angle ⁇ is seven degrees.
  • sealing ring 10 has a free height FH which is the maximum height of sealing ring 10 when sealing ring 10 is uninstalled and not subjected to any compression or compressive forces.
  • the free height FH may be measured between edge 120 of sealing leg 18 and edge 122 of sealing leg 24 .
  • the ratio of bevel angle ⁇ to free height FH is within the range of about 70:1 to about 90:1.
  • sealing ring 10 has a first outer diameter OD 1 that is measured at end 42 of first centering leg 40 .
  • the ratio of first outer diameter OD 1 to free height FH is within a predetermined range for a particular first outer diameter OD 1 .
  • the ratio OD 1 /FH is within a range of about 0.112 to about 0.037.
  • the ratio OD 1 /FH is within a range of about 0.046 to about 0.023.
  • first outer diameters OD 1 of 6.0 inches to 12.0 inches the ratio OD 1 /FH is within a range of about 0.028 to about 0.014. It is to be understood that these outer diameter OD 1 dimensions and ratios may vary depending upon the application in which sealing ring 10 is used and the materials from which the sealing ring 10 is fabricated.
  • sealing ring 10 has a second outer diameter OD 2 which is less than first outer diameter OD 1 .
  • Second outer diameter OD 2 may be measured at outer portion 50 of sealing leg 16 and may also be measured at outer portion 52 of sealing leg 22 .
  • the first outer diameter OD 1 is about 1.0 inch and the second outer diameter OD 2 is about 0.956 inch.
  • sealing ring 10 has a first inner diameter ID 1 that is measured at end 46 of second centering leg 44 .
  • Sealing ring 10 also has a second inner diameter ID 2 that is greater than the first inner diameter ID 1 .
  • Second inner diameter ID 2 is measured at portion 60 of sealing leg 18 and may also be measured at portion 62 of sealing leg 24 .
  • first inner diameter ID 1 is about 0.60 inch and second inner diameter ID 2 is about 0.644 inch.
  • each sealing leg 16 , 18 , 22 and 24 has a thickness T 1 .
  • thickness T 1 is about 0.015 inch.
  • First centering leg 40 and second centering leg 44 each have a thickness T 2 .
  • thickness T 2 is about 0.012 inch.
  • Each sealing leg 16 , 18 , 22 and 24 has a length L 1 .
  • length L 1 is about 0.061 inch.
  • Each centering leg 40 and 44 has a length L 2 .
  • length L 2 is about 0.067 inch.
  • sealing ring 10 may be varied depending upon the application in which sealing ring 10 is to be used.
  • sealing ring 10 is fabricated from alloys such as Inconel alloys and Hastelloy alloys. In other embodiments, sealing ring 10 may be fabricated from rubbers, elastomers, plastics and composites. In alternate embodiments, sealing ring 10 may be fabricated from other metals.
  • sealing ring 10 allows sealing ring 10 to be used in situations wherein there are two sources of pressure, one on either side of sealing ring 10 , wherein each source of pressure could be positive pressure or negative pressure.
  • positive pressure are positive hydraulic pressure, hydrostatic pressure, pneumatic pressure or a positive vacuum pressure.
  • the positive pressure would be on both the inner diameter and outer diameter of the sealing ring 10 .
  • An example of negative pressure is a negative vacuum pressure.
  • Typical applications for sealing ring 10 include offshore drilling wells wherein there would be hydrostatic pressure on one side of sealing ring 10 and oil pressure on the other side of sealing ring 10 .
  • the pressure is on the inner and outer diameters to pressure-energize sealing ring 10 .
  • the negative pressure may be on either side of sealing ring 10 .
  • An application wherein the negative pressure may be on either side of sealing ring 10 is a retort wherein there is vacuum pressure on the outer diameter or inner diameter and positive pressure on the opposite side of sealing ring 10 .
  • An example of positive pressure is atmospheric pressure or higher pressure.
  • Sealing ring 10 may also be used as a redundant seal that functions as a back-up seal in the event the first seal fails. Sealing ring 10 requires only a single groove, channel or cavity in contrast to the prior art C-seals or spring energized seals.
  • Sealing legs 40 and 44 locate sealing ring 10 relative to the channel, groove or cavity to prevent sealing ring 10 from sliding and the loss of sealing integrity with pressure or variations in pressure on the outer diameter or the inner diameter. Sealing ring 10 has sufficient stiffness to prevent seal leakage and to prevent sealing ring 10 from being de-energized.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gasket Seals (AREA)
  • Sealing Devices (AREA)
US14/485,429 2014-09-12 2014-09-12 Sealing ring Active 2035-07-21 US9551420B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US14/485,429 US9551420B2 (en) 2014-09-12 2014-09-12 Sealing ring
EP15839956.8A EP3191745B1 (fr) 2014-09-12 2015-09-10 Bague d'étanchéité
EP19186461.0A EP3572694B1 (fr) 2014-09-12 2015-09-10 Bague d'étanchéité
PCT/US2015/049335 WO2016040569A1 (fr) 2014-09-12 2015-09-10 Bague d'étanchéité

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14/485,429 US9551420B2 (en) 2014-09-12 2014-09-12 Sealing ring

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Publication Number Publication Date
US20160076650A1 US20160076650A1 (en) 2016-03-17
US9551420B2 true US9551420B2 (en) 2017-01-24

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Application Number Title Priority Date Filing Date
US14/485,429 Active 2035-07-21 US9551420B2 (en) 2014-09-12 2014-09-12 Sealing ring

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US (1) US9551420B2 (fr)
EP (2) EP3191745B1 (fr)
WO (1) WO2016040569A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190264810A1 (en) * 2016-07-26 2019-08-29 Fmc Technologies Do Brasil Ltda Metal airtight seal with bidirectional face, self-energizable by pressure
US20220260155A1 (en) * 2019-07-19 2022-08-18 Spm Oil & Gas Inc. Novel High-Pressure Sealing Ring with Custom-Shaped Profile

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106352181B (zh) * 2016-10-18 2020-12-22 杨顺立 弓形环密封垫圈及弓形环密封管连接件
JP1638480S (fr) * 2018-09-11 2019-08-05
US11499637B2 (en) * 2018-09-11 2022-11-15 Caterpillar Inc. Lip seal
DE102018219779A1 (de) * 2018-11-19 2020-05-20 Zf Friedrichshafen Ag Dichtungsvorrichtung, E-Maschine und Antriebsvorrichtung
WO2020200401A1 (fr) * 2019-03-29 2020-10-08 Abb Schweiz Ag Joint, moteur, robot industriel et procédé d'installation d'un joint d'étanchéité

Citations (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2392182A (en) 1943-06-19 1946-01-01 Crane Packing Co Piston construction
US2841429A (en) 1955-10-04 1958-07-01 Parker Hannifin Corp Sealing ring and joint
US2888281A (en) 1957-01-23 1959-05-26 Chicago Rawhide Mfg Co Self-compensating seal
US3047301A (en) 1960-02-12 1962-07-31 Lockheed Aircraft Corp Static sealing assembly
US3047300A (en) * 1959-07-01 1962-07-31 Lockheed Aircraft Corp Metal sealing assembly
US3052478A (en) 1959-09-16 1962-09-04 Prec Associates Inc Sealing ring
US3183008A (en) 1963-03-04 1965-05-11 Allegheny Plastics X-seal
US3228705A (en) 1962-03-13 1966-01-11 Dowty Seals Ltd Rotary sealing devices
US3288475A (en) 1962-06-06 1966-11-29 Joint Francais Toric packing
US3608913A (en) * 1968-11-22 1971-09-28 Ind Dev Co Establishments Gland for piston-cylinder assembly and the like
US3612551A (en) 1969-11-06 1971-10-12 Trw Inc Bidirectional lip seal
US3682489A (en) * 1969-08-01 1972-08-08 Hans Fischer Centering labyrinth seal
US4199158A (en) * 1977-11-23 1980-04-22 Vredestein N.V. Profiled gasket for sealing tunnel segment joints
US4585238A (en) * 1984-08-22 1986-04-29 Nicholson Terence P Channeled ring seals with spring rings
US4787642A (en) * 1987-04-27 1988-11-29 Seaboard Wellhead, Inc. X-shaped high pressure sealing structure
US5002290A (en) 1989-03-07 1991-03-26 Procal Static seal
US5246236A (en) * 1992-01-21 1993-09-21 Halliburton Company Seal for long-time exposures in oil and gas well tools
US5372230A (en) * 1991-09-25 1994-12-13 Fabrica De Aco Paulista Ltda. Belt conveyor roller
EP0806594A1 (fr) 1996-04-30 1997-11-12 Teruaki Masuoka Joint torique à section multi-lobulaire
US7857322B2 (en) 2006-03-23 2010-12-28 Carl Freudenberg Kg Sealing ring
WO2011050837A1 (fr) 2009-10-28 2011-05-05 Aktiebolaget Skf Dispositif d'étanchéité en forme de x pour palier de roulement, en particulier pour palier de roulement utilisé dans une éolienne
US20130113165A1 (en) 2011-03-23 2013-05-09 Kayaba Industry Co., Ltd. Piston bearing structure for fluid pressure cylinder

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3550990A (en) * 1969-06-17 1970-12-29 Minnesota Rubber Co Sealing device
US20070287317A1 (en) * 2006-06-13 2007-12-13 Reum Rex J Independent Leg Seal
CN201047442Y (zh) 2007-05-25 2008-04-16 广州机械科学研究院 Xv形组合密封圈

Patent Citations (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2392182A (en) 1943-06-19 1946-01-01 Crane Packing Co Piston construction
US2841429A (en) 1955-10-04 1958-07-01 Parker Hannifin Corp Sealing ring and joint
US2888281A (en) 1957-01-23 1959-05-26 Chicago Rawhide Mfg Co Self-compensating seal
US3047300A (en) * 1959-07-01 1962-07-31 Lockheed Aircraft Corp Metal sealing assembly
US3052478A (en) 1959-09-16 1962-09-04 Prec Associates Inc Sealing ring
US3047301A (en) 1960-02-12 1962-07-31 Lockheed Aircraft Corp Static sealing assembly
US3228705A (en) 1962-03-13 1966-01-11 Dowty Seals Ltd Rotary sealing devices
US3288475A (en) 1962-06-06 1966-11-29 Joint Francais Toric packing
US3183008A (en) 1963-03-04 1965-05-11 Allegheny Plastics X-seal
US3608913A (en) * 1968-11-22 1971-09-28 Ind Dev Co Establishments Gland for piston-cylinder assembly and the like
US3682489A (en) * 1969-08-01 1972-08-08 Hans Fischer Centering labyrinth seal
US3612551A (en) 1969-11-06 1971-10-12 Trw Inc Bidirectional lip seal
US4199158A (en) * 1977-11-23 1980-04-22 Vredestein N.V. Profiled gasket for sealing tunnel segment joints
US4585238A (en) * 1984-08-22 1986-04-29 Nicholson Terence P Channeled ring seals with spring rings
US4787642A (en) * 1987-04-27 1988-11-29 Seaboard Wellhead, Inc. X-shaped high pressure sealing structure
US5002290A (en) 1989-03-07 1991-03-26 Procal Static seal
US5372230A (en) * 1991-09-25 1994-12-13 Fabrica De Aco Paulista Ltda. Belt conveyor roller
US5246236A (en) * 1992-01-21 1993-09-21 Halliburton Company Seal for long-time exposures in oil and gas well tools
EP0806594A1 (fr) 1996-04-30 1997-11-12 Teruaki Masuoka Joint torique à section multi-lobulaire
US7857322B2 (en) 2006-03-23 2010-12-28 Carl Freudenberg Kg Sealing ring
WO2011050837A1 (fr) 2009-10-28 2011-05-05 Aktiebolaget Skf Dispositif d'étanchéité en forme de x pour palier de roulement, en particulier pour palier de roulement utilisé dans une éolienne
US20130113165A1 (en) 2011-03-23 2013-05-09 Kayaba Industry Co., Ltd. Piston bearing structure for fluid pressure cylinder

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Internet Advertisement for Parker Hannifin X-Seal. The document was downloaded from the internet on Oct. 10, 2013. The original publication date is not known.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190264810A1 (en) * 2016-07-26 2019-08-29 Fmc Technologies Do Brasil Ltda Metal airtight seal with bidirectional face, self-energizable by pressure
US11236828B2 (en) * 2016-07-26 2022-02-01 Fmc Technologies Do Brasil Ltda Metal airtight seal with bidirectional face, self-energizable by pressure
US20220260155A1 (en) * 2019-07-19 2022-08-18 Spm Oil & Gas Inc. Novel High-Pressure Sealing Ring with Custom-Shaped Profile

Also Published As

Publication number Publication date
EP3572694A1 (fr) 2019-11-27
US20160076650A1 (en) 2016-03-17
EP3572694B1 (fr) 2023-10-25
EP3191745B1 (fr) 2019-07-17
WO2016040569A1 (fr) 2016-03-17
EP3191745A1 (fr) 2017-07-19
EP3191745A4 (fr) 2017-10-04

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